20363933 has 2 divisors, whose sum is σ = 20363934. Its totient is φ = 20363932.

The previous prime is 20363927. The next prime is 20363957. The reversal of 20363933 is 33936302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18164644 + 2199289 = 4262^2 + 1483^2 .

It is a cyclic number.

It is not a de Polignac number, because 20363933 - 2⁸ = 20363677 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20363896 and 20363905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20363963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10181966 + 10181967.

It is an arithmetic number, because the mean of its divisors is an integer number (10181967).

Almost surely, 2^20363933 is an apocalyptic number.

It is an amenable number.

20363933 is a deficient number, since it is larger than the sum of its proper divisors (1).

20363933 is an equidigital number, since it uses as much as digits as its factorization.

20363933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 29.

The square root of 20363933 is about 4512.6414659266. The cubic root of 20363933 is about 273.0783183994.

The spelling of 20363933 in words is "twenty million, three hundred sixty-three thousand, nine hundred thirty-three".